CN108283508B - Biopsy needle and using method - Google Patents
Biopsy needle and using method Download PDFInfo
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- CN108283508B CN108283508B CN201711480483.XA CN201711480483A CN108283508B CN 108283508 B CN108283508 B CN 108283508B CN 201711480483 A CN201711480483 A CN 201711480483A CN 108283508 B CN108283508 B CN 108283508B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0266—Pointed or sharp biopsy instruments means for severing sample
- A61B10/0275—Pointed or sharp biopsy instruments means for severing sample with sample notch, e.g. on the side of inner stylet
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
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Abstract
The invention discloses a biopsy needle and a using method thereof, aiming at solving the defects that the operation is inconvenient when the biopsy needle is used for puncture, the taken tissue slice is easy to mix tissues of other parts, so the accuracy of biopsy is reduced, and the hemostasis of the biopsy puncture part is inconvenient. A sub-annular flaky medicine bag is arranged on the inner wall of an outer needle tube close to the front end, a pull rope capable of tearing the medicine bag is connected to the medicine bag, the pull rope is connected to an inner needle far away from the front end, and hemostatic liquid medicine is filled in the medicine bag. The operation is convenient when the biopsy needle is used for puncture, because the biopsy needle is inserted into and pulled out of the body, the front end of the inner needle is arranged at the position close to the opening in the outer needle tube, and the outer needle tube plays a good protection role for the front end of the inner needle, so that the taken tissue slice can not be mixed with tissues of other parts, the accuracy of biopsy is ensured, and the tissue section can be used for directly stopping bleeding of the biopsy puncture part, the hemostasis is convenient, and the hemostasis effect is good.
Description
Technical Field
The present invention relates to medical devices, and more particularly, it relates to a biopsy needle and method of use.
Background
At present, the disposable biopsy needle is suitable for obtaining slices from soft tissues, and is convenient for detecting tissues of a specific part. When the biopsy needle is used for puncture biopsy, the needle head penetrates through skin to a certain depth and reaches a part needing biopsy, then the needle head is pulled back, and the front end of the needle head carries out partial tissue section of the part. At present, when a biopsy needle is used for puncture, the operation is inconvenient, and the taken tissue slice is easy to be mixed with tissues of other parts, so that the biopsy accuracy is reduced, and the hemostasis of the biopsy puncture part is inconvenient.
Chinese patent publication No. CN200984195Y discloses a biopsy needle, which comprises a cannula puncture needle and a biopsy needle core, wherein the puncture end of the biopsy needle core is in a sawtooth structure, and the hand-held ends of the biopsy needle core and the cannula puncture needle are in a thread structure. The biopsy needle has novel design, simple structure and convenient use, and is easy to obtain living tissues because the puncture end of the biopsy needle core is in a zigzag shape, and the biopsy needle core and the handheld end of the cannula puncture needle are in a threaded structure, so that the biopsy needle core is firmly held by the hand and is not easy to slip. However, when the biopsy needle is used for puncture, the operation is inconvenient, and the taken tissue slice is easy to mix with tissues of other parts, so that the accuracy of biopsy is reduced, and the hemostasis of the biopsy puncture part is inconvenient.
Disclosure of Invention
The invention overcomes the defects that the operation is inconvenient when the biopsy needle is used for puncture, and the taken tissue slice is easy to be mixed with tissues of other parts, so the biopsy accuracy is reduced, and the hemostasis of the biopsy punctured part is inconvenient.
In order to solve the technical problems, the invention adopts the following technical scheme: a biopsy needle comprises a handle, an inner needle and an outer needle tube, wherein a mounting cavity and a sliding cavity are arranged in the handle, a long strip-shaped sliding groove is formed between the mounting cavity and the sliding cavity, a partition plate and a positioning plate are arranged in the mounting cavity, a pushing slide block is slidably mounted at the front section of the handle, an outer needle tube seat is mounted between the pushing slide block and the partition plate in the mounting cavity, an inner needle seat is mounted between the partition plate and the positioning plate, the inner needle is sleeved in the outer needle tube, the front end of the inner needle is arranged in the outer needle tube and close to an opening, the rear end of the inner needle extends out of the rear end of the outer needle tube, a slicing hook groove is formed in the front end of the inner needle, an annular flaky medicine bag is arranged on the inner wall of the outer needle tube close to the; the rear end of the outer needle tube is connected to the outer needle tube seat, the rear end of the inner needle is connected to the inner needle seat, an outer needle tube spring is installed between the outer needle tube seat and the partition plate, an inner needle spring is installed between the inner needle seat and the partition plate, the rear end of the handle is provided with a push button, an extension column is arranged on the push button, a push column is movably installed on the extension column and penetrates through the chute, an abutting spring is sleeved on the push column, one end of the push column is attached to the rear end of the inner needle seat, the other end of the push column abuts against the inner wall of the sliding cavity, and an avoiding groove is formed in; install the spacing post that is used for spacing promotion slider on the sliding chamber inner wall, spacing spring is connected to spacing post one end, and the spacing post other end stretches out the sliding chamber inner wall, is equipped with the wedge ejector pad on the spacing post, extends the post front end and is equipped with the push rod, and the push rod front end is equipped with the jack, and the jack internalization cartridge has the inserted bar, and the first head that promotes is connected to the inserted bar front end, and the first lower extreme that promotes is equipped with the butt pole, and the butt pole laminating is on the wedge face of wedge ejector pad.
When the biopsy needle is used, the biopsy needle is firstly disassembled to expose the outer needle tube outside, the sliding block is pushed in a sliding manner, the front side of the sliding block is abutted to the rear side of the limiting column, and at the moment, the front end of the inner needle is arranged in the outer needle tube and close to the opening position, so that the biopsy needle is well positioned; then the biopsy needle is vertically inserted into the body downwards to reach a certain depth, so that the front end of the outer needle tube is close to the detection part of the to-be-sliced sheet; then the push button is pressed, the push column connected on the extension column of the push button pushes the inner needle seat to move forwards, the inner needle extends outwards to be pierced into the tissue of the section detection part, the push button is continuously pressed, the push column slides away from the inner wall of the sliding cavity to the avoidance groove position, the push column slides away from the inner needle seat, the inner needle seat rebounds backwards under the action of the inner needle spring, the inner needle pulls back to the section hook groove to pull out the section tissue, the front end of the inner needle retracts into the outer needle tube, the push button is continuously pressed, the bottom surface of the jack on the push rod abuts against the rear end of the inserted link and pushes the inserted link to move forwards, the push head connected with the inserted link moves forwards along with the inserted link so that the abutted link pushes the wedge-shaped slide block to move outwards the handle in the advancing process, the limit column retracts to slide away from the push slide block, the push slide block moves forwards under the action of the outer needle tube spring so that the medicine bag is torn by the pull rope, and the hemostatic, thereby effectively stanching the wound site; and then the biopsy needle is pulled out outwards, then the sliding block is pushed to slide backwards, the sliding block is pushed to slide through the limiting column, the front end of the inner needle is exposed outwards, and then the sliced tissues in the slicing hook groove at the front end of the inner needle are taken down. The operation is convenient when the biopsy needle is used for puncture, because the biopsy needle is inserted into and pulled out of the body, the front end of the inner needle is arranged at the position close to the opening in the outer needle tube, and the outer needle tube plays a good protection role for the front end of the inner needle, so that the taken tissue slice can not be mixed with tissues of other parts, the accuracy of biopsy is ensured, and the tissue section can be used for directly stopping bleeding of the biopsy puncture part, the hemostasis is convenient, and the hemostasis effect is good.
Preferably, the rear end of the inserted bar is of a T-shaped structure, and the front end of the push rod is connected with a limiting end cover used for limiting the rear end of the inserted bar. This arrangement prevents the plunger from sliding off the socket.
Preferably, the outer needle tube seat comprises a seat body, two positioning rods and two connecting rods, wherein the two positioning rods and the two connecting rods are connected to the seat body; the inner needle seat comprises a seat body, two positioning rods and two connecting rods, wherein the two positioning rods and the two connecting rods are connected to the seat body, the two positioning rods are arranged at edge positions, the two connecting rods are arranged at middle positions, and the inner needle spring is sleeved on the two connecting rods. The outer needle tube seat and the inner needle seat are positioned through the two positioning rods, the sliding process is stable and reliable, the deviation phenomenon is prevented, and the outer needle tube spring and the inner needle spring are stably installed conveniently through the connecting rods on the outer needle tube seat and the inner needle seat.
Preferably, the edge of the front end of the push button is provided with a limiting bulge, the rear end of the handle is provided with a limiting convex block, and the limiting bulge abuts against the limiting convex block. The limiting bulge is abutted against the limiting convex block to prevent the push button from sliding off the handle.
Preferably, a plurality of anti-slip grooves are arranged on the outer surface of the pushing sliding block. The anti-slip groove is convenient to slide and push the sliding block, so that the phenomenon of slipping of fingers is prevented.
Preferably, the front end of the handle is connected with a limiting support, the pushing sliding block abuts against the limiting support, the limiting support is provided with an inserting sleeve, a protection tube is inserted into the inserting sleeve, the protection tube is sleeved on the outer needle tube, and the front end of the outer needle tube is arranged in the protection tube. The limiting support plays a limiting role in pushing the sliding block, and meanwhile, the protection tube is convenient to use for protecting the outer needle tube.
A method of using a biopsy needle comprising the steps of: a. detaching the biopsy needle to expose the outer needle tube, sliding the pushing slide block to enable the front side of the pushing slide block to abut against the rear side of the limiting column, and at the moment, arranging the front end of the inner needle in the outer needle tube close to the opening position to position the biopsy needle; b. vertically inserting the biopsy needle downwards into a body to a certain depth to enable the front end of the outer needle tube to be close to the detection part of a to-be-sliced; c. pressing the push button, pushing the push column connected to the push button extension column to push the inner needle base to move forward, the inner needle extends outwards to penetrate into the tissue of the section detection part, continuing to press the push button, pushing the column to slide away from the inner wall of the sliding cavity to the avoidance groove position, pushing the column to slide away from the inner needle base, the inner needle base rebounds backwards under the action of the inner needle spring, the inner needle pulls back to the section hook groove to pull out the section tissue, the front end of the inner needle retracts back into the outer needle tube, continuing to press the push button, the bottom surface of the jack on the push rod abuts against the rear end of the inserted link and pushes the inserted link to move forwards, the push head connected with the inserted link moves forwards along with the inserted link so that the abutted link pushes the wedge-shaped slide block to move outwards from the handle in the advancing process, the limit column retracts back to slide away from the push slide block, the push slide block moves forwards under the action of the outer needle tube spring, so that the medicine bag is torn by the pull rope, thereby effectively stanching the wound site; d. the biopsy needle is pulled out outwards, then the sliding block is pushed to slide backwards, the sliding block is pushed to slide through the limiting column, the front end of the inner needle is exposed outwards, and then the sliced tissues in the slicing hook groove at the front end of the inner needle are taken down.
The whole using process of the biopsy needle is convenient to operate, the taken tissue slices cannot be mixed with tissues of other parts, the accuracy of biopsy is ensured, the hemostasis effect is good when the biopsy needle is used for directly stopping bleeding at the biopsy puncture part.
Compared with the prior art, the invention has the beneficial effects that: the operation is convenient when the biopsy needle is used for puncture, because the biopsy needle is inserted into and pulled out of the body, the front end of the inner needle is arranged at the position close to the opening in the outer needle tube, and the outer needle tube plays a good protection role for the front end of the inner needle, so that the taken tissue slice can not be mixed with tissues of other parts, the accuracy of biopsy is ensured, and the tissue section can be used for directly stopping bleeding of the biopsy puncture part, the hemostasis is convenient, and the hemostasis effect is good.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a partial schematic view of the forward end of the inner needle of the present invention;
FIG. 3 is a schematic view of the connection structure of the restraining post of the present invention;
FIG. 4 is a schematic view showing a connection structure of a push column of the present invention;
in the figure: 1. the needle comprises a handle, 2, an inner needle, 3, an outer needle tube, 4, a mounting cavity, 5, a sliding cavity, 6, a partition plate, 7, a positioning plate, 8, a pushing sliding block, 9, an outer needle tube seat, 10, an inner needle seat, 11, a slicing hook groove, 12, a medicine bag, 13, a pull rope, 14, an outer needle tube spring, 15, an inner needle spring, 16, a pushing button, 17, an extension column, 18, a pushing column, 19, a butting spring, 20, an avoiding groove, 21, a limiting column, 22, a limiting spring, 23, a wedge-shaped pushing block, 24, a pushing rod, 25, a jack, 26, an inserting rod, 27, a pushing head, 28, a butting rod, 34, a limiting end cover, 38, a seat body, 39, a positioning rod, 40, a connecting rod, 41, a limiting bulge, 42, a limiting lug, 43, an anti-skid groove, 44, a limiting support, 45, an inserting sleeve, 46, a protective tube, 47, a limiting.
Detailed Description
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example (b): a biopsy needle (see attached figures 1 to 4) comprises a handle 1, an inner needle 2 and an outer needle tube 3, wherein a mounting cavity 4 and a sliding cavity 5 are arranged in the handle, a long strip-shaped sliding groove 5 is arranged between the mounting cavity and the sliding cavity, a partition plate 6 and a positioning plate 7 are arranged in the mounting cavity, a pushing slide block 8 is slidably arranged at the front section of the handle, an outer needle tube seat 9 is arranged between the pushing slide block and the partition plate in the mounting cavity, an inner needle seat 10 is arranged between the partition plate and the positioning plate, the inner needle is sleeved in the outer needle tube, the front end of the inner needle is arranged in the outer needle tube and close to an opening, the rear end of the inner needle extends out of the rear end of the outer needle tube, a C-shaped slicing hook groove 11 is arranged at the front end of the inner needle, an annular flaky medicine bag 12 is arranged on the inner wall of the outer needle tube close to the; outer needle tubing rear end is connected on outer needle tube seat, the rear end of interior needle is connected on the needle file including, install outer needle tube spring 14 between outer needle tube seat and the baffle, needle spring 15 in the installation between interior needle file and the baffle, push button 16 is installed to the handle rear end, be equipped with extension post 17 on the push button, movable mounting has the promotion post 18 on the extension post, the promotion post passes the spout, the cover is equipped with butt spring 19 on the promotion post, needle file rear end including the laminating of promotion post one end, other end butt is on smooth intracavity wall, it is equipped with the positioning disk to promote the post outer wall and be close to smooth intracavity wall end, be equipped with the mounting hole on the extension post, the mounting hole open end is equipped with the bulge loop, the butt spring is installed between bulge. An avoidance groove 20 is arranged on the inner wall of the sliding cavity and close to the position of the pushing column; install the spacing post 21 that is used for spacing promotion slider on the sliding chamber inner wall, spacing spring 22 is connected to spacing post one end, the spacing post other end stretches out the sliding chamber inner wall, be equipped with wedge ejector pad 23 on the spacing post, be equipped with the connecting hole that is used for installing spacing post on the sliding chamber inner wall, the connecting hole edge sets up the location bulge loop on the sliding chamber inner wall, set up spacing dish on the spacing post outer wall, spacing spring butt is between spacing dish and connecting hole bottom surface, spacing dish butt is on the location bulge loop, the wedge ejector pad is connected on spacing dish. Extending the post front end and being equipped with push rod 24, the push rod front end is equipped with jack 25, and the jack internalization cartridge has inserted bar 26, and the distance of inserted bar rear end to the jack bottom surface is greater than the distance that promotes the post to dodging the groove, and the inserted bar rear end is T shape structure, and the push rod front end is connected with the spacing end cover 34 that is used for spacing inserted bar rear end, and the first 27 that promotes is connected to the inserted bar front end, and the first lower extreme that promotes is equipped with butt joint pole 28, and the butt joint pole laminating is on the wedge face of wedge ejector pad. Be equipped with spacing head 47 on the promotion slider, the setting of the smooth intracavity wall of spacing head laminating, the leading surface 48 that the slope set up is equipped with near smooth intracavity wall corner position of spacing head rear side, and spacing post can be slided to spacing head rear side, but spacing head front side butt is at spacing post rear side. The outer needle tube seat comprises a seat body 38, two positioning rods 39 and two connecting rods 40, wherein the two positioning rods are connected to the seat body, the two positioning rods are arranged at the edge positions, the two connecting rods are arranged at the middle positions, and the outer needle tube spring is sleeved on the two connecting rods; the inner needle seat comprises a seat body, two positioning rods and two connecting rods, wherein the two positioning rods and the two connecting rods are connected to the seat body, the two positioning rods are arranged at edge positions, the two connecting rods are arranged at middle positions, and the inner needle spring is sleeved on the two connecting rods. The edge of the front end of the push button is provided with a limiting bulge 41, the rear end of the handle is provided with a limiting convex block 42, and the limiting bulge is abutted against the limiting convex block. The outer surface of the pushing slide block is provided with a plurality of anti-skid grooves 43. The front end of the handle is connected with a limiting support 44, the pushing slide block is abutted against the limiting support, the limiting support is provided with an inserting sleeve 45, a protection tube 46 is inserted on the inserting sleeve, the protection tube is sleeved on the outer needle tube, and the front end of the outer needle tube is arranged in the protection tube.
When the biopsy needle is used, the biopsy needle is firstly disassembled to expose the outer needle tube outside, the sliding block is pushed in a sliding manner, the front side of the sliding block is abutted to the rear side of the limiting column, and at the moment, the front end of the inner needle is arranged in the outer needle tube and close to the opening position, so that the biopsy needle is well positioned; then the biopsy needle is vertically inserted into the body downwards to reach a certain depth, so that the front end of the outer needle tube is close to the detection part of the to-be-sliced sheet; then the push button is pressed, the push column connected on the extension column of the push button pushes the inner needle seat to move forwards, the inner needle extends outwards to be pierced into the tissue of the section detection part, the push button is continuously pressed, the push column slides away from the inner wall of the sliding cavity to the avoidance groove position, the push column slides away from the inner needle seat, the inner needle seat rebounds backwards under the action of the inner needle spring, the inner needle pulls back to the section hook groove to pull out the section tissue, the front end of the inner needle retracts into the outer needle tube, the push button is continuously pressed, the bottom surface of the jack on the push rod abuts against the rear end of the inserted link and pushes the inserted link to move forwards, the push head connected with the inserted link moves forwards along with the inserted link so that the abutted link pushes the wedge-shaped slide block to move outwards the handle in the advancing process, the limit column retracts to slide away from the push slide block, the push slide block moves forwards under the action of the outer needle tube spring so that the medicine bag is torn by the pull rope, and the hemostatic, thereby effectively stanching the wound site; and then the biopsy needle is pulled out outwards, then the sliding block is pushed to slide backwards, the sliding block is pushed to slide through the limiting column, the front end of the inner needle is exposed outwards, and then the sliced tissues in the slicing hook groove at the front end of the inner needle are taken down. The operation is convenient when the biopsy needle is used for puncture, because the biopsy needle is inserted into and pulled out of the body, the front end of the inner needle is arranged at the position close to the opening in the outer needle tube, and the outer needle tube plays a good protection role for the front end of the inner needle, so that the taken tissue slice can not be mixed with tissues of other parts, the accuracy of biopsy is ensured, and the tissue section can be used for directly stopping bleeding of the biopsy puncture part, the hemostasis is convenient, and the hemostasis effect is good.
A method of using a biopsy needle comprising the steps of: a. detaching the biopsy needle to expose the outer needle tube, sliding the pushing slide block to enable the front side of the pushing slide block to abut against the rear side of the limiting column, and at the moment, arranging the front end of the inner needle in the outer needle tube close to the opening position to position the biopsy needle; b. vertically inserting the biopsy needle downwards into a body to a certain depth to enable the front end of the outer needle tube to be close to the detection part of a to-be-sliced; c. pressing the push button, pushing the push column connected to the push button extension column to push the inner needle base to move forward, the inner needle extends outwards to penetrate into the tissue of the section detection part, continuing to press the push button, pushing the column to slide away from the inner wall of the sliding cavity to the avoidance groove position, pushing the column to slide away from the inner needle base, the inner needle base rebounds backwards under the action of the inner needle spring, the inner needle pulls back to the section hook groove to pull out the section tissue, the front end of the inner needle retracts back into the outer needle tube, continuing to press the push button, the bottom surface of the jack on the push rod abuts against the rear end of the inserted link and pushes the inserted link to move forwards, the push head connected with the inserted link moves forwards along with the inserted link so that the abutted link pushes the wedge-shaped slide block to move outwards from the handle in the advancing process, the limit column retracts back to slide away from the push slide block, the push slide block moves forwards under the action of the outer needle tube spring, so that the medicine bag is torn by the pull rope, thereby effectively stanching the wound site; d. the biopsy needle is pulled out outwards, then the sliding block is pushed to slide backwards, the sliding block is pushed to slide through the limiting column, the front end of the inner needle is exposed outwards, and then the sliced tissues in the slicing hook groove at the front end of the inner needle are taken down.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (6)
1. A biopsy needle is characterized by comprising a handle, an inner needle and an outer needle tube, wherein a mounting cavity and a sliding cavity are arranged in the handle, a long-strip-shaped sliding groove is formed between the mounting cavity and the sliding cavity, a partition plate and a positioning plate are arranged in the mounting cavity, a pushing slide block is slidably arranged at the front section of the handle, an outer needle tube seat is arranged between the pushing slide block and the partition plate in the mounting cavity, an inner needle seat is arranged between the partition plate and the positioning plate, the inner needle is sleeved in the outer needle tube, the front end of the inner needle is arranged in the outer needle tube and close to an opening, the rear end of the inner needle extends out of the rear end of the outer needle tube, a slicing hook groove is formed in the front end of the inner needle, an annular flaky medicine bag is arranged on the inner wall of the outer needle tube close; the rear end of the outer needle tube is connected to the outer needle tube seat, the rear end of the inner needle is connected to the inner needle seat, an outer needle tube spring is installed between the outer needle tube seat and the partition plate, an inner needle spring is installed between the inner needle seat and the partition plate, the rear end of the handle is provided with a push button, an extension column is arranged on the push button, a push column is movably installed on the extension column and penetrates through the chute, an abutting spring is sleeved on the push column, one end of the push column is attached to the rear end of the inner needle seat, the other end of the push column abuts against the inner wall of the sliding cavity, and an avoiding groove is formed in; install the spacing post that is used for spacing promotion slider on the sliding chamber inner wall, spacing spring is connected to spacing post one end, and the spacing post other end stretches out the sliding chamber inner wall, is equipped with the wedge ejector pad on the spacing post, extends the post front end and is equipped with the push rod, and the push rod front end is equipped with the jack, and the jack internalization cartridge has the inserted bar, and the first head that promotes is connected to the inserted bar front end, and the first lower extreme that promotes is equipped with the butt pole, and the butt pole laminating is on the wedge face of wedge ejector pad.
2. The biopsy needle of claim 1, wherein the rear end of the plunger is T-shaped, and the front end of the plunger is connected with a limit cap for limiting the rear end of the plunger.
3. The biopsy needle of claim 1, wherein the outer needle tube holder comprises a holder body, two positioning rods connected to the holder body, and two connecting rods, the two positioning rods are disposed at the edge position, the two connecting rods are disposed at the middle position, and the outer needle tube is spring-fitted over the two connecting rods; the inner needle seat comprises a seat body, two positioning rods and two connecting rods, wherein the two positioning rods and the two connecting rods are connected to the seat body, the two positioning rods are arranged at edge positions, the two connecting rods are arranged at middle positions, and the inner needle spring is sleeved on the two connecting rods.
4. The biopsy needle of claim 1, wherein the push button has a limiting protrusion at a front end thereof, and the handle has a limiting protrusion at a rear end thereof, the limiting protrusion abutting against the limiting protrusion.
5. The biopsy needle of claim 1, wherein the push slider has a plurality of anti-slip grooves on an outer surface thereof.
6. The biopsy needle according to any one of claims 1 to 5, wherein the front end of the handle is connected with a limiting support, the pushing slider abuts against the limiting support, the limiting support is provided with a plug bush, a protection tube is plugged in the plug bush, the protection tube is sleeved on the outer needle tube, and the front end of the outer needle tube is arranged in the protection tube.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711480483.XA CN108283508B (en) | 2017-12-29 | 2017-12-29 | Biopsy needle and using method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711480483.XA CN108283508B (en) | 2017-12-29 | 2017-12-29 | Biopsy needle and using method |
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| CN108283508A CN108283508A (en) | 2018-07-17 |
| CN108283508B true CN108283508B (en) | 2020-11-13 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109646061B (en) * | 2019-02-20 | 2024-08-27 | 苏州市立普医疗科技有限公司 | Biopsy needle with two excitation forms |
| CN111317549B (en) * | 2020-03-03 | 2021-02-19 | 刘卫辉 | Ultrasonic endoscope puncture needle system in power-on mode |
| WO2021207876A1 (en) * | 2020-04-13 | 2021-10-21 | 苏州市立普医疗科技有限公司 | Disposable cytological biopsy needle |
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